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Cheng R, Taleb N, Wu Z, Bouchard D, Parent V, Lalanne-Mistrih ML, Boudreau V, Messier V, Lacombe MJ, Grou C, Brazeau AS, Rabasa-Lhoret R. Managing Impending Nonsevere Hypoglycemia With Oral Carbohydrates in Type 1 Diabetes: The REVERSIBLE Trial. Diabetes Care 2024; 47:476-482. [PMID: 38194601 DOI: 10.2337/dc23-1328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 12/20/2023] [Indexed: 01/11/2024]
Abstract
OBJECTIVE Current guidelines recommend initiating treatment for nonsevere (NS) hypoglycemia with 15 g carbohydrates (CHO) at 15-min intervals when blood glucose (BG) reaches <70 mg/dL (3.9 mmol/L). Despite this recommendation, NS hypoglycemia management remains challenging for individuals living with type 1 diabetes (T1D). We aimed to assess the efficacy of 15 g CHO at higher BG levels. RESEARCH DESIGN AND METHODS A total of 29 individuals with T1D participated in an open-label crossover study. After an inpatient subcutaneous insulin-induced decrease in BG in the fasting state, 16 g CHO was administered orally at a plasma glucose (PG) of <70 (3.9), ≤80 (4.5), or ≤90 mg/dL (5.0 mmol/L). The primary outcome was time spent in hypoglycemia (<70 mg/dL) after initial CHO intake. RESULTS When comparing the <70 (control) with the ≤80 and ≤90 mg/dL treatment groups, 100 vs. 86 (P = 0.1201) vs. 34% (P < 0.0001) of participants reached hypoglycemia, respectively. These hypoglycemic events lasted 26.0 ± 12.6 vs. 17.9 ± 14.7 (P = 0.026) vs. 7.1 ± 11.8 min (P = 0.002), with a PG nadir of 56.57 ± 9.91 vs. 63.60 ± 7.93 (P = 0.008) vs. 73.51 ± 9.37 mg/dL (P = 0.002), respectively. In the control group, 69% of participants required more than one treatment to reach or maintain normoglycemia (≥70 mg/dL), compared with 52% in the ≤80 mg/dL group and 31% in the ≤90 mg/dL group, with no significant rebound hyperglycemia (>180 mg/dL) within the first hour. CONCLUSIONS For some impending NS hypoglycemia episodes, individuals with TID could benefit from CHO intake at a higher BG level.
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Affiliation(s)
- Ran Cheng
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
- Department of Biomedical Sciences, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
- Endocrinology Division, Hôpital Maisonneuve-Rosemont, Montréal, Québec, Canada
- Endocrinology Division, Hôpital Santa-Cabrini, Montréal, Québec, Canada
| | - Nadine Taleb
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
- Endocrinology Division, Centre hospitalier de l'Université de Montréal, Montréal, Québec, Canada
- Centre de recherche du Centre hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Zekai Wu
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
- Experimental Medicine Division, Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Delphine Bouchard
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
| | - Valérie Parent
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
| | | | - Valérie Boudreau
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
| | - Virginie Messier
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
| | | | - Caroline Grou
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
| | - Anne-Sophie Brazeau
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
- School of Human Nutrition, McGill University, Montréal, Québec, Canada
| | - Rémi Rabasa-Lhoret
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
- Department of Biomedical Sciences, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
- Endocrinology Division, Centre hospitalier de l'Université de Montréal, Montréal, Québec, Canada
- Department of Nutrition, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
- Montreal Diabetes Research Center, Montréal, Québec, Canada
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Taleb N, Gingras V, Cheng R, Parent V, Messier V, Bovan D, Shohoudi A, Brazeau AS, Rabasa-Lhoret R. Non-severe hypoglycemia in type 1 diabetes: a randomized crossover trial comparing two quantities of oral carbohydrates at different insulin-induced hypoglycemia ranges. Front Endocrinol (Lausanne) 2023; 14:1186680. [PMID: 37334295 PMCID: PMC10272543 DOI: 10.3389/fendo.2023.1186680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/09/2023] [Indexed: 06/20/2023] Open
Abstract
Aims Non-severe hypoglycemia (NS-H) is challenging for people living with type 1 diabetes (PWT1D) and often results from relative iatrogenic hyper-insulinemia. Current guidelines recommend a one-size-fits-all approach of 15-20 g of simple carbohydrates (CHO) every 15 min regardless of the triggering conditions of the NS-H event. We aimed to test different amounts of CHO to treat insulin-induced NS-H at various glucose ranges. Methods This is a randomized, four-way, crossover study involving PWT1D, testing NS-H treatment outcomes with 16 g vs. 32 g CHO at two plasma glucose (PG) ranges: A: 3.0-3.5 mmol/L and B: <3.0 mmol/L. Across all study arms, participants consumed an additional 16 g of CHO if PG was still <3.0 mmol/L at 15 min and <4.0 mmol/L at 45 min post-initial treatment. Subcutaneous insulin was used in a fasting state to induce NS-H. Participants had frequent venous sampling of PG, insulin, and glucagon levels. Results Participants (n = 32; 56% female participants) had a mean (SD) age of 46.1 (17.1) years, had HbA1c at 54.0 (6.8 mmol/mol) [7.1% (0.9%)], and had a diabetes duration of 27.5 (17.0) years; 56% were insulin pump users. We compared NS-H correction parameters between 16 g and 32 g of CHO for range A, 3.0-3.5 mmol/L (n = 32), and range B, <3.0 mmol/L (n = 29). Change in PG at 15 min for A: 0.1 (0.8) mmol/L vs. 0.6 (0.9) mmol/L, p = 0.02; and for B: 0.8 (0.9) mmol/L vs. 0.8 (1.0) mmol/L, p = 1.0. Percentage of participants with corrected episodes at 15 min: (A) 19% vs. 47%, p = 0.09; (B) 21% vs. 24%, p = 1.0. A second treatment was necessary in (A) 50% vs. 15% of participants, p = 0.001; (B) 45% vs. 34% of participants, p = 0.37. No statistically significant differences in insulin and glucagon parameters were observed. Conclusions NS-H, in the context of hyper-insulinemia, is difficult to treat in PWT1D. Initial consumption of 32 g of CHO revealed some advantages at the 3.0-3.5 mmol/L range. This was not reproduced at lower PG ranges since participants needed additional CHO regardless of the amount of initial consumption. Clinical trial registration ClinicalTrials.gov, identifier NCT03489967.
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Affiliation(s)
- Nadine Taleb
- Montreal Clinical Research Institute, Montreal, Canada
- Biomedical Sciences Department, Faculty of Medicine, Université de Montréal, Montreal, Canada
- Endocrinology Division, Centre hospitalier de l’Université de Montréal, Montreal, Canada
| | - Véronique Gingras
- Montreal Clinical Research Institute, Montreal, Canada
- Research Centre, CHU Sainte-Justine, Montreal, Canada
- Department of Nutrition, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Ran Cheng
- Montreal Clinical Research Institute, Montreal, Canada
- Endocrinology Division, Centre hospitalier de l’Université de Montréal, Montreal, Canada
| | | | | | | | | | - Anne-Sophie Brazeau
- School of Human Nutrition, McGill University, Montreal, Canada
- Montreal Diabetes Research Center, Montreal, Canada
| | - Rémi Rabasa-Lhoret
- Montreal Clinical Research Institute, Montreal, Canada
- Endocrinology Division, Centre hospitalier de l’Université de Montréal, Montreal, Canada
- Department of Nutrition, Faculty of Medicine, Université de Montréal, Montreal, Canada
- Montreal Diabetes Research Center, Montreal, Canada
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3
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Story LH, Wilson LM. New Developments in Glucagon Treatment for Hypoglycemia. Drugs 2022; 82:1179-1191. [PMID: 35932416 DOI: 10.1007/s40265-022-01754-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2022] [Indexed: 11/28/2022]
Abstract
Glucagon is essential for endogenous glucose regulation along with the paired hormone, insulin. Unlike insulin, pharmaceutical use of glucagon has been limited due to the unstable nature of the peptide. Glucagon has the potential to address hypoglycemia as a major limiting factor in the treatment of diabetes, which remains very common in the type 1 and type 2 diabetes. Recent developments are poised to change this paradigm and expand the use of glucagon for people with diabetes. Glucagon emergency kits have major limitations for their use in treating severe hypoglycemia. A complicated reconstitution and injection process often results in incomplete or aborted administration. New preparations include intranasal glucagon with an easy-to-use and needle-free nasal applicator as well as two stable liquid formulations in pre-filled injection devices. These may ease the burden of severe hypoglycemia treatment. The liquid preparations may also have a role in the treatment of non-severe hypoglycemia. Despite potential benefits of expanded use of glucagon, undesirable side effects (nausea, vomiting), cost, and complexity of adding another medication may limit real-world use. Additionally, more long-term safety and outcome data are needed before widespread, frequent use of glucagon is recommended by providers.
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Affiliation(s)
- LesleAnn Hayward Story
- Division of Endocrinology, Harold Schnitzer Diabetes Health Center, Oregon Health & Science University, Portland, OR, USA
| | - Leah M Wilson
- Division of Endocrinology, Harold Schnitzer Diabetes Health Center, Oregon Health & Science University, Portland, OR, USA.
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Colberg SR. Why Glucagon Matters for Hypoglycemia and Physical Activity in Individuals With Type 1 Diabetes. FRONTIERS IN CLINICAL DIABETES AND HEALTHCARE 2022; 3:889248. [PMID: 36992764 PMCID: PMC10012082 DOI: 10.3389/fcdhc.2022.889248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/15/2022] [Indexed: 11/13/2022]
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Laugesen C, Ranjan AG, Schmidt S, Nørgaard K. Low-Dose Dasiglucagon Versus Oral Glucose for Prevention of Insulin-Induced Hypoglycemia in People With Type 1 Diabetes: A Phase 2, Randomized, Three-Arm Crossover Study. Diabetes Care 2022; 45:1391-1399. [PMID: 35475907 DOI: 10.2337/dc21-2304] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 03/18/2022] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To compare the efficacy of low-dose subcutaneous dasiglucagon with oral glucose for prevention of insulin-induced hypoglycemia in people with type 1 diabetes. RESEARCH DESIGN AND METHODS Twenty adults with type 1 diabetes using multiple daily injection or insulin pump therapy completed a phase 2, randomized, three-arm crossover study. On each study visit, an individualized subcutaneous insulin bolus was administered aiming for a plasma glucose (PG) concentration of 3.0 mmol/L (54 mg/dL). When a PG concentration of 4.5 mmol/L (81 mg/dL) was reached, 15 g oral glucose (CHO) from dextrose tablets, 80 µg dasiglucagon (D80), or 120 µg dasiglucagon (D120) was administered. PG was measured frequently for the following 180 min. RESULTS Hypoglycemia (<3.9 mmol/L [70 mg/dL]) occurred in 10 participants after CHO, in 5 after D80, and in 4 after D120 (CHO vs. D80, P = 0.096; CHO vs. D120, P = 0.034). Time spent in hypoglycemia (<3.9 mmol/L [70 mg/dL]) was 14%, 7%, and 6% for CHO, D80, and D120, respectively (P = 0.273). The median time (95% CI) from intervention to first increase in PG of 1.1 mmol/L (20 mg/dL) was 30 (25-50), 15 (15-20), and 15 (15-20) minutes for CHO, D80, and D120, respectively (CHO vs. D80, P = 0.006; CHO vs. D120, P = 0.003). Episodes of nausea were numerically, but not significantly, higher after dasiglucagon administration. No significant differences in visual analog scale-assessed adverse effects were observed between interventions. CONCLUSIONS Low-dose dasiglucagon safely and effectively prevented insulin-induced hypoglycemia with a faster glucose-elevating profile than oral glucose.
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Affiliation(s)
| | - Ajenthen G Ranjan
- Clinical Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark.,Danish Diabetes Academy, Odense, Denmark
| | - Signe Schmidt
- Clinical Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark.,Department of Clinical Pharmacology, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark
| | - Kirsten Nørgaard
- Clinical Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Chapman K, Hughes AS, Bispham J, Leon C, Nguyen H, Wolf WA. Emergency Glucagon: a Focused Review of Psychosocial Experiences of Rescue Drugs for Type 1 Diabetes. Curr Diab Rep 2022; 22:189-197. [PMID: 35171447 DOI: 10.1007/s11892-021-01443-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/19/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE OF REVIEW The purpose of this paper is to describe rescue glucagon types, safety, efficacy, and preferences, as well as to review articles regarding emergency glucagon usage, severe hypoglycemia, and the emotions of both phenomena. We conducted a review of current literature on glucagon usage and the emotional impact of severe hypoglycemia on people with diabetes (PwD) and the caregivers of people with type 1 diabetes (T1D). RECENT FINDINGS Minimal research exists pertaining to glucagon and severe hypoglycemic experiences in PwD, which is troubling considering the severity of risks and possible side effects. Recent articles described negative emotions such as fear, anxiety, stress, helplessness, shame, embarrassment, loneliness, frustration, hopefulness, and uncertainty surrounding glucagon usage. There is scarce research regarding PwD's emotions surrounding severe hypoglycemia and rescue glucagon use. Additional research is needed to investigate the emotions and feelings people with T1D and their caregivers' experience pertaining to severe hypoglycemia and emergency glucagon use.
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Affiliation(s)
- Katherine Chapman
- T1D Exchange, 11 Ave de Lafayette, 5th Floor, Boston, MA, 02111, USA.
| | - Allyson S Hughes
- Department of Primary Care, Ohio University, Heritage College of Osteopathic Medicine, Athens, OH, USA
| | | | - Carolina Leon
- T1D Exchange, 11 Ave de Lafayette, 5th Floor, Boston, MA, 02111, USA
| | - Huyen Nguyen
- T1D Exchange, 11 Ave de Lafayette, 5th Floor, Boston, MA, 02111, USA
| | - Wendy A Wolf
- T1D Exchange, 11 Ave de Lafayette, 5th Floor, Boston, MA, 02111, USA
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Pujalte G, Alhumaidi HM, Ligaray KPL, Vomer RP, Israni K, Abadin AA, Meek SE. Considerations in the Care of Athletes With Type 1 Diabetes Mellitus. Cureus 2022; 14:e22447. [PMID: 35345701 PMCID: PMC8942069 DOI: 10.7759/cureus.22447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2022] [Indexed: 11/12/2022] Open
Abstract
Type 1 diabetes mellitus is an autoimmune disease caused by affected individuals’ autoimmune response to their own pancreatic beta-cell. It affects millions of people worldwide. Exercise has numerous health and social benefits for patients with type 1 diabetes mellitus; however, careful management of blood glucose is crucial to minimize the risk of hypoglycemia and hyperglycemia. Anaerobic and aerobic exercises cause different glycemic responses during and after exercise, each of which will affect athletes’ ability to reach their target blood glucose ranges. The optimization of the patient’s macronutrient consumption, especially carbohydrates, the dosage of basal and short-acting insulin, and the frequent monitoring of blood glucose, will enable athletes to perform at peak levels while reducing their risk of dysglycemia. Despite best efforts, hypoglycemia can occur. Recognition of symptoms and rapid treatment with either fast-acting carbohydrates or glucagon is important. Continuous glucose monitoring devices have become more widely used in preventing hypoglycemia.
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Christiansen MP, Cummins M, Prestrelski S, Close NC, Nguyen A, Junaidi K. Comparison of a ready-to-use liquid glucagon injection administered by autoinjector to glucagon emergency kit for the symptomatic relief of severe hypoglycemia: two randomized crossover non-inferiority studies. BMJ Open Diabetes Res Care 2021; 9:9/1/e002137. [PMID: 34620618 PMCID: PMC8499286 DOI: 10.1136/bmjdrc-2021-002137] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 08/25/2021] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION To prevent medical sequelae of severe hypoglycemic emergencies, prompt and reliable rescue intervention is critically important. A ready-to-use, liquid stable glucagon, administered subcutaneously by glucagon autoinjector (GAI), Gvoke HypoPen (glucagon injection; Xeris Pharmaceuticals), was evaluated for rescue treatment of severe hypoglycemia. RESEARCH DESIGN AND METHODS Two phase III, randomized, controlled, blinded, non-inferiority crossover studies were conducted in 161 adults with type 1 diabetes to compare 1 mg doses of GAI versus glucagon emergency kit (GEK) for treating insulin-induced severe hypoglycemia. Efficacy was evaluated as either a return of plasma glucose to >70 mg/dL (3.9 mmol/L) or increase ≥20 mg/dL (1.1 mmol/L) from a baseline glucose of <50 mg/dL (2.9 mmol/L), within 30 min of dosing. RESULTS For successful plasma glucose recovery within 30 min, treatment with GAI was non-inferior to GEK. Treatment with GAI was non-inferior to GEK for a plasma glucose >70 mg/dL (3.9 mmol/L) or neuroglycopenic symptom relief within 30 min. From administration of glucagon, the mean time to achieve plasma glucose >70 mg/dL (3.9 mmol/L) or increase ≥20 mg/dL (1.1 mmol/L) was 13.8±5.6 min for GAI and 10.0±3.6 min for GEK. This mean time does not account for the significantly shorter (p<0.0001) drug preparation and administration time for GAI (27.3±19.7 s) versus GEK (97.2±45.1 s). The incidence of treatment emergent adverse events was comparable in both groups. CONCLUSIONS A ready-to-use GAI was non-inferior to GEK, with a similar tolerability profile. GAI is an effective, safe, and well-tolerated rescue treatment for severe hypoglycemia and is a viable alternative to GEK. TRIAL REGISTRATION NUMBERS NCT02656069 and NCT03439072.
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Affiliation(s)
| | - Martin Cummins
- Clinical Development, Xeris Pharmaceuticals Inc, Chicago, Illinois, USA
| | | | | | - Anh Nguyen
- Clinical Development, Xeris Pharmaceuticals Inc, Chicago, Illinois, USA
| | - Khaled Junaidi
- Clinical Development, Xeris Pharmaceuticals Inc, Chicago, Illinois, USA
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9
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La Sala L, Pontiroli AE. New Fast Acting Glucagon for Recovery from Hypoglycemia, a Life-Threatening Situation: Nasal Powder and Injected Stable Solutions. Int J Mol Sci 2021; 22:ijms221910643. [PMID: 34638984 PMCID: PMC8508740 DOI: 10.3390/ijms221910643] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 12/12/2022] Open
Abstract
The goal of diabetes care is to achieve and maintain good glycemic control over time, so as to prevent or delay the development of micro- and macrovascular complications in type 1 (T1D) and type 2 diabetes (T2D). However, numerous barriers hinder the achievement of this goal, first of all the frequent episodes of hypoglycemia typical in patients treated with insulin as T1D patients, or sulphonylureas as T2D patients. The prevention strategy and treatment of hypoglycemia are important for the well-being of patients with diabetes. Hypoglycemia is strongly associated with an increased risk of cardiovascular disease in diabetic patients, due probably to the release of inflammatory markers and prothrombotic effects triggered by hypoglycemia. Treatment of hypoglycemia is traditionally based on administration of carbohydrates or of glucagon via intramuscular (IM) or subcutaneous injection (SC). The injection of traditional glucagon is cumbersome, such that glucagon is an under-utilized drug. In 1983, it was shown for the first time that intranasal (IN) glucagon increases blood glucose levels in healthy volunteers, and in 1989-1992 that IN glucagon is similar to IM glucagon in resolving hypoglycemia in normal volunteers and in patients with diabetes, both adults and children. IN glucagon was developed in 2010 and continued in 2015; in 2019 IN glucagon obtained approval in the US, Canada, and Europe for severe hypoglycemia in children and adults. In the 2010s, two ready-to-use injectable formulations, a stable non-aqueous glucagon solution and the glucagon analog dasiglucagon, were developed, showing an efficacy similar to traditional glucagon, and approved in the US in 2020 and in 2021, respectively, for severe hypoglycemia in adults and in children. Fast-acting glucagon (nasal administration and injected solutions) appears to represent a major breakthrough in the treatment of severe hypoglycemia in insulin-treated patients with diabetes, both adults and children. It is anticipated that the availability of fast-acting glucagon will expand the use of glucagon, improve overall metabolic control, and prevent hypoglycemia-related complications, in particular cardiovascular complications and cognitive impairment.
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Affiliation(s)
- Lucia La Sala
- IRCCS MultiMedica, Lab of Diabetology and Dysmetabolic Disease, PST Via Fantoli 16/15, 20138 Milan, Italy
- Correspondence: ; Tel.: +39-02-5540-6534 (ext. 6587)
| | - Antonio E. Pontiroli
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, 20100 Milan, Italy;
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Rabinovich A, Priefer R. Glucagon delivery - An overview of current and future devices. Diabetes Metab Syndr 2021; 15:102155. [PMID: 34198107 DOI: 10.1016/j.dsx.2021.05.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 05/25/2021] [Indexed: 01/21/2023]
Abstract
Glucagon is crucial in the treatment of Type 1 diabetes mellitus due to the prevalence of hypoglycemia in patients with this disorder. Hypoglycemia can be life-threatening, leading to loss of consciousness, and requiring emergency glucagon to reverse the effects. Emergency kits are difficult to use, requiring reconstitution of glucagon, which itself is not stable for lengthy periods. Approaches have aimed to improve stability which has allowed for use in pens or pumps. Glucagon can now also be delivered intranasally. This review discusses the history of glucagon, its current delivery methods as well as some modern approaches being introduced.
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Affiliation(s)
- Arthur Rabinovich
- Massachusetts College of Pharmacy and Health Sciences University, Boston, MA, USA
| | - Ronny Priefer
- Massachusetts College of Pharmacy and Health Sciences University, Boston, MA, USA.
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11
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Pharmacokinetics of Intraperitoneally Delivered Glucagon in Pigs: A Hypothesis of First Pass Metabolism. Eur J Drug Metab Pharmacokinet 2021; 46:505-511. [PMID: 34100220 PMCID: PMC8298214 DOI: 10.1007/s13318-021-00692-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2021] [Indexed: 01/23/2023]
Abstract
Background and Objective Artificial pancreases administering low-dose glucagon in addition to insulin have the scope to improve glucose control in patients with diabetes mellitus type 1. If such a device were to deliver both hormones intraperitoneally, it would mimic normal physiology, which may be beneficial. However, the pharmacokinetic properties of glucagon after intraperitoneal administration are not well known. Hence, the current study aims to evaluate the relationship between the amount of intraperitoneally delivered glucagon and pharmacokinetic variables in a pig model. Methods Pharmacokinetic data was retrieved from experiments on 19 anaesthetised pigs and analysed post hoc. The animals received a single intraperitoneal bolus of glucagon ranging from 0.30 to 4.46 µg/kg. Plasma glucagon was measured every 2–10 min for 50 min. Results Peak plasma concentration and area under the time–plasma concentration curve of glucagon correlated positively with the administered dose, and larger boluses provided a relatively greater increase. The mean (standard deviation) time to maximum glucagon concentration in plasma was 11 (5) min, and the mean elimination half-life of glucagon in plasma was 19 (7) min. Conclusions Maximum plasma concentration and area under the time–plasma concentration curve of glucagon increase nonlinearly in relation to the intraperitoneally administered glucagon dose. We hypothesise that the results are compatible with a satiable first-pass metabolism in the liver. Time to maximum glucagon concentration in plasma and the elimination half-life of glucagon in plasma seem independent of the drug dose.
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12
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Sherman JJ, Lariccia JL. Glucagon Therapy: A Comparison of Current and Novel Treatments. Diabetes Spectr 2020; 33:347-351. [PMID: 33223773 PMCID: PMC7666610 DOI: 10.2337/ds19-0076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Ranjan AG, Schmidt S, Nørgaard K. Glucagon for hypoglycaemia treatment in type 1 diabetes. Diabetes Metab Res Rev 2020; 37:e3409. [PMID: 33090668 DOI: 10.1002/dmrr.3409] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/14/2020] [Accepted: 09/14/2020] [Indexed: 12/22/2022]
Abstract
To achieve strict glycaemic control and avoid chronic diabetes complications, individuals with type 1 diabetes (T1D) are recommended to follow an intensive insulin regimen. However, the risk and fear of hypoglycaemia often prevent individuals from achieving the treatment goals. Apart from early insulin suspension in insulin pump users, carbohydrate ingestion is the only option for preventing and treating non-severe hypoglycaemic events. These rescue treatments may give extra calories and cause overweight. As an alternative, the use of low-dose glucagon to counter hypoglycaemia has been proposed as a tool to raise glucose concentrations without adding extra calories. Previously, the commercially available glucagon formulations required reconstitution from powder to a solution before being injected subcutaneously or intramuscularly-making it practical only for treating severe hypoglycaemia. Several companies have developed more stable formulations that do not require the time-consuming reconstitution process before use. As well as treating severe hypoglycaemia, non-severe and impending hypoglycaemia can also be treated with lower doses of glucagon. Once available, low-dose glucagon can be either delivered manually, as an injection, or automatically, by an infusion pump. This review focuses on the role and perspectives of using glucagon to treat and prevent hypoglycaemia in T1D.
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Affiliation(s)
- Ajenthen G Ranjan
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Danish Diabetes Academy, Odense, Denmark
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14
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Newswanger B, Prestrelski S, Andre AD. Human factors studies of a prefilled syringe with stable liquid glucagon in a simulated severe hypoglycemia rescue situation. Expert Opin Drug Deliv 2020; 16:1015-1025. [PMID: 31475853 DOI: 10.1080/17425247.2019.1653278] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Two human factors studies evaluated whether a stable liquid formulation of glucagon in a prefilled syringe (G-PFS) could be safely and effectively administered and evaluated the effectiveness of the product label guide and instructions-for-use (IFU). Research design and methods: In a formative study, 11 participants received orientation with the G-PFS instructional materials and performed a single unaided rescue attempt. In the validation study, 75 adult and adolescent participants received training or familiarized themselves with the G-PFS IFU, Label Guide, and device. All participants returned 1 week later to perform a single unaided rescue attempt of a simulated person with diabetes suffering from an emergency severe hypoglycemic event. Results: The formative study resulted in a 100% success rate across all rescue dose attempts. The validation study resulted in 74/75 (99%) of participants successfully using the G-PFS to administer the full glucagon rescue dose, and validated that intended users could learn from, comprehend, and recall the G-PFS instructions to successfully use the product. Conclusion: The G-PFS provides a familiar, easy-to-use alternative to currently marketed lyophilized glucagon kits for treating severe hypoglycemia. The G-PFS IFU and Label Guide enable even untrained users to successfully administer a full rescue dose of stable liquid glucagon.
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15
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Mulla CM, Zavitsanou S, Laguna Sanz AJ, Pober D, Richardson L, Walcott P, Arora I, Newswanger B, Cummins MJ, Prestrelski SJ, Doyle FJ, Dassau E, Patti ME. A Randomized, Placebo-Controlled Double-Blind Trial of a Closed-Loop Glucagon System for Postbariatric Hypoglycemia. J Clin Endocrinol Metab 2020; 105:5623031. [PMID: 31714583 PMCID: PMC7174034 DOI: 10.1210/clinem/dgz197] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 11/08/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Postbariatric hypoglycemia (PBH) can threaten safety and reduce quality of life. Current therapies are incompletely effective. METHODS Patients with PBH were enrolled in a double-blind, placebo-controlled, crossover trial to evaluate a closed-loop glucose-responsive automated glucagon delivery system designed to reduce severe hypoglycemia. A hypoglycemia detection and mitigation algorithm was embedded in the artificial pancreas system connected to a continuous glucose monitor (CGM, Dexcom) driving a patch infusion pump (Insulet) filled with liquid investigational glucagon (Xeris) or placebo (vehicle). Sensor/plasma glucose responses to mixed meal were assessed during 2 study visits. The system delivered up to 2 doses of study drug (300/150 μg glucagon or equal-volume vehicle) if triggered by the algorithm. Rescue dextrose was given for plasma glucose <55 mg/dL or neuroglycopenia. RESULTS Twelve participants (11 females/1 male, age 52 ± 2, 8 ± 1 years postsurgery, mean ± SEM) completed all visits. Predictive hypoglycemia alerts prompted automated drug delivery postmeal, when sensor glucose was 114 ± 7 vs 121 ± 5 mg/dL (P = .39). Seven participants required rescue glucose after vehicle but not glucagon (P = .008). Five participants had severe hypoglycemia (<55 mg/dL) after vehicle but not glucagon (P = .03). Nadir plasma glucose was higher with glucagon vs vehicle (67 ± 3 vs 59 ± 2 mg/dL, P = .004). Plasma glucagon rose after glucagon delivery (1231 ± 187 vs 16 ± 1 pg/mL at 30 minutes, P = .001). No rebound hyperglycemia occurred. Transient infusion site discomfort was reported with both glucagon (n = 11/12) and vehicle (n = 10/12). No other adverse events were observed. CONCLUSION A CGM-guided closed-loop rescue system can detect imminent hypoglycemia and deliver glucagon, reducing severe hypoglycemia in PBH. CLINICAL TRIALS REGISTRATION NCT03255629.
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Affiliation(s)
| | - Stamatina Zavitsanou
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA
| | | | - David Pober
- Research Division, Joslin Diabetes Center, Boston, MA
| | | | | | - Ipsa Arora
- Research Division, Joslin Diabetes Center, Boston, MA
| | | | | | | | - Francis J Doyle
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA
| | - Eyal Dassau
- Research Division, Joslin Diabetes Center, Boston, MA
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA
- Correspondence and Reprint Requests: Mary-Elizabeth Patti, MD, 1 Joslin Place, Boston, MA 02215. E-mail: ; or Eyal Dassau, PhD, Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA, 02138. E-mail:
| | - Mary Elizabeth Patti
- Research Division, Joslin Diabetes Center, Boston, MA
- Correspondence and Reprint Requests: Mary-Elizabeth Patti, MD, 1 Joslin Place, Boston, MA 02215. E-mail: ; or Eyal Dassau, PhD, Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA, 02138. E-mail:
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Patil M, Deshmukh NJ, Patel M, Sangle GV. Glucagon-based therapy: Past, present and future. Peptides 2020; 127:170296. [PMID: 32147318 DOI: 10.1016/j.peptides.2020.170296] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/05/2020] [Accepted: 03/04/2020] [Indexed: 02/07/2023]
Abstract
Diabesity and its related cardio-hepato-renal complications are of absolute concern globally. Last decade has witnessed a growing interest in the scientific community in investigating novel pharmaco-therapies employing the pancreatic hormone, glucagon. Canonically, this polypeptide hormone is known for its use in rescue treatment for hypoglycaemic shocks owing to its involvement in the counter-regulatory feedback mechanism. However, substantial studies in the recent past elucidated the pleiotropic effects of glucagon in diabesity and related complications like non-alcoholic steatohepatitis (NASH) and non-alcoholic fatty liver disease (NAFLD). Thus, the dual nature of this peptide has sparked the search for drugs that can modify glucagon signalling to combat hypoglycaemia or diabesity. Thus far, researchers have explored various pharmacological approaches to utilise this peptide in imminent modern therapies. The research endeavours in this segment led to explorations of stable glucagon formulations/analogues, glucagon receptor antagonism, glucagon receptor agonism, and incretin poly-agonism as new strategies for the management of hypoglycaemia or diabesity. This 'three-dimensional' research on glucagon resulted in the discovery of various drug candidates that proficiently modify glucagon signalling. Currently, several emerging glucagon-based therapies are under pre-clinical and clinical development. We sought to summarise the recent progress to comprehend glucagon-mediated pleiotropic effects, provide an overview of drug candidates currently being developed and future perspectives in this research domain.
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Affiliation(s)
- Mohan Patil
- Diabetes Research Lab, New Drug Discovery, Wockhardt Research Centre, Aurangabad, Maharashtra, India
| | - Nitin J Deshmukh
- Diabetes Research Lab, New Drug Discovery, Wockhardt Research Centre, Aurangabad, Maharashtra, India
| | - Mahesh Patel
- Diabetes Research Lab, New Drug Discovery, Wockhardt Research Centre, Aurangabad, Maharashtra, India; New Drug Discovery, Wockhardt Research Centre, Aurangabad, Maharashtra, India
| | - Ganesh V Sangle
- Diabetes Research Lab, New Drug Discovery, Wockhardt Research Centre, Aurangabad, Maharashtra, India.
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17
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VanBaak KD, Nally LM, Finigan RT, Jurkiewicz CL, Burnier AM, Conrad BP, Khodaee M, Lipman GS. Wilderness Medical Society Clinical Practice Guidelines for Diabetes Management. Wilderness Environ Med 2019; 30:S121-S140. [PMID: 31753543 DOI: 10.1016/j.wem.2019.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 10/11/2019] [Accepted: 10/11/2019] [Indexed: 11/18/2022]
Abstract
The Wilderness Medical Society convened an expert panel in 2018 to develop a set of evidence-based guidelines for the treatment of type 1 and 2 diabetes, as well as the recognition, prevention, and treatment of complications of diabetes in wilderness athletes. We present a review of the classifications, pathophysiology, and evidence-based guidelines for planning and preventive measures, as well as best practice recommendations for both routine and urgent therapeutic management of diabetes and glycemic complications. These recommendations are graded based on the quality of supporting evidence and balance between the benefits and risks or burdens for each recommendation.
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Affiliation(s)
- Karin D VanBaak
- Department of Family Medicine and Department of Orthopedics, University of Colorado School of Medicine, Aurora, CO.
| | - Laura M Nally
- Department of Pediatric Endocrinology, Yale University School of Medicine, New Haven, CT
| | | | - Carrie L Jurkiewicz
- Department of Emergency Medicine, Stanford University School of Medicine, Stanford, CA
| | | | - Barry P Conrad
- Division of Endocrinology, Stanford Children's Hospital, Stanford, CA
| | - Morteza Khodaee
- Department of Family Medicine and Department of Orthopedics, University of Colorado School of Medicine, Aurora, CO
| | - Grant S Lipman
- Department of Emergency Medicine, Stanford University School of Medicine, Stanford, CA
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18
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Abstract
PURPOSE OF REVIEW New more stable formulations of glucagon have recently become available, and these provide an opportunity to expand the clinical roles of this hormone in the prevention and management of insulin-induced hypoglycemia. This is applicable in type 1 diabetes, hyperinsulinism, and alimentary hypoglycemia. The aim of this review is to describe these new formulations of glucagon and to provide an overview of current and future therapeutic opportunities that these may provide. RECENT FINDINGS Four main categories of glucagon formulation have been studied: intranasal glucagon, biochaperone glucagon, dasiglucagon, and non-aqueous soluble glucagon. All four have demonstrated similar glycemic responses to standard glucagon formulations when administered during hypoglycemia. In addition, potential roles of these formulations in the management of congenital hyperinsulinism, alimentary hypoglycemia, and exercise-induced hypoglycemia in type 1 diabetes have been described. As our experience with newer glucagon preparations increases, the role of glucagon is likely to expand beyond the emergency use that this medication has been limited to in the past. The innovations described in this review likely represent early examples of a pending large repertoire of indications for stable glucagon.
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Affiliation(s)
- Colin P Hawkes
- Division of Endocrinology and Diabetes, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Diva D De Leon
- Division of Endocrinology and Diabetes, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Institute for Diabetes, Obesity & Metabolism, Perelman School of Medicine, University of Pennsylvania, 12-134 Smilow Center for Translational Research, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA
| | - Michael R Rickels
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Institute for Diabetes, Obesity & Metabolism, Perelman School of Medicine, University of Pennsylvania, 12-134 Smilow Center for Translational Research, 3400 Civic Center Blvd, Philadelphia, PA, 19104, USA.
- Division of Endocrinology, Diabetes & Metabolism, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA.
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19
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Beato-Víbora PI, Arroyo-Díez FJ. New uses and formulations of glucagon for hypoglycaemia. Drugs Context 2019; 8:212599. [PMID: 31402931 PMCID: PMC6675539 DOI: 10.7573/dic.212599] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/23/2019] [Accepted: 06/26/2019] [Indexed: 12/11/2022] Open
Abstract
Hypoglycaemia is the more frequent complication of insulin therapy and the main barrier to tight glycaemic control. Injectable glucagon and oral intake of carbohydrates are the recommended treatments for severe and non-severe hypoglycaemia episodes, respectively. Nasal glucagon is currently being developed as a ready-to-use device, to simplify severe hypoglycaemia rescue. Stable forms of liquid glucagon could open the field for different approaches for mild to moderate hypoglycaemia treatment, such as mini-doses of glucagon or continuous subcutaneous glucagon infusion as a part of dual-hormone closed-loop systems. Pharmaceutical companies are developing stable forms of native glucagon or glucagon analogues for that purpose.
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Affiliation(s)
- Pilar I Beato-Víbora
- Department of Endocrinology and Nutrition, Department of Paediatrics, Badajoz University Hospital, Badajoz, Spain
| | - Francisco J Arroyo-Díez
- Department of Endocrinology and Nutrition, Department of Paediatrics, Badajoz University Hospital, Badajoz, Spain
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20
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Steineck IIK, Ranjan A, Schmidt S, Clausen TR, Holst JJ, Nørgaard K. Preserved glucose response to low-dose glucagon after exercise in insulin-pump-treated individuals with type 1 diabetes: a randomised crossover study. Diabetologia 2019; 62:582-592. [PMID: 30643924 DOI: 10.1007/s00125-018-4807-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 12/06/2018] [Indexed: 12/15/2022]
Abstract
AIMS/HYPOTHESIS This study aimed to compare the increase in plasma glucose after a subcutaneous injection of 200 μg glucagon given after 45 min of cycling with resting (study 1) and to investigate the effects of glucagon when injected before compared with after 45 min of cycling (study 2). We hypothesised that: (1) the glucose response to glucagon would be similar after cycling and resting; and (2) giving glucagon before the activity would prevent the exercise-induced fall in blood glucose during exercise and for 2 h afterwards. METHODS Fourteen insulin-pump-treated individuals with type 1 diabetes completed three visits in a randomised, placebo-controlled, participant-blinded crossover study. They were allocated by sealed envelopes. Baseline values were (mean and range): HbA1c 54 mmol/mol (43-65 mmol/mol) or 7.1% (6.1-8.1%); age 45 years (23-66 years); BMI 26 kg/m2 (21-30 kg/m2); and diabetes duration 26 years (8-51 years). At each visit, participants consumed a standardised breakfast 2 h prior to 45 min of cycling or resting. A subcutaneous injection of 200 μg glucagon was given before or after cycling or after resting. The glucose response to glucagon was compared after cycling vs resting (study 1) and before vs after cycling (study 2). RESULTS The glucose response to glucagon was higher after cycling compared with after resting (mean ± SD incremental peak: 2.6 ± 1.7 vs 1.8 ± 2.0 mmol/l, p = 0.02). As expected, plasma glucose decreased during cycling (-3.1 ± 2.8 mmol/l) but less so when glucagon was given before cycling (-0.9 ± 2.8 mmol/l, p = 0.002). The number of individuals reaching glucose values ≤3.9 mmol/l was the same on the 3 days. CONCLUSIONS/INTERPRETATION Moderate cycling for 45 min did not impair the glucose response to glucagon compared with the glucose response after resting. The glucose fall during cycling was diminished by a pre-exercise injection of 200 μg glucagon; however, no significant difference was seen in the number of events of hypoglycaemia. TRIAL REGISTRATION Clinicaltrials.gov NCT02882737 FUNDING: The study was funded by the Danish Diabetes Academy founded by Novo Nordisk foundation and by an unrestricted grant from Zealand Pharma.
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Affiliation(s)
- Isabelle I K Steineck
- Department of Endocrinology, Copenhagen University Hospital Hvidovre, Kettegaard Alle 30, 2650, Hvidovre, Denmark.
- Danish Diabetes Academy, Odense, Denmark.
| | - Ajenthen Ranjan
- Department of Endocrinology, Copenhagen University Hospital Hvidovre, Kettegaard Alle 30, 2650, Hvidovre, Denmark
- Danish Diabetes Academy, Odense, Denmark
- Department of Pediatrics, Copenhagen University Hospital, Herlev, Denmark
| | - Signe Schmidt
- Department of Endocrinology, Copenhagen University Hospital Hvidovre, Kettegaard Alle 30, 2650, Hvidovre, Denmark
- Danish Diabetes Academy, Odense, Denmark
| | | | - Jens J Holst
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kirsten Nørgaard
- Department of Endocrinology, Copenhagen University Hospital Hvidovre, Kettegaard Alle 30, 2650, Hvidovre, Denmark
- Steno Diabetes Center, Copenhagen, Denmark
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21
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Rickels MR, DuBose SN, Toschi E, Beck RW, Verdejo AS, Wolpert H, Cummins MJ, Newswanger B, Riddell MC, Rickels M, Peleckis A, Evangelisti M, Dalton-Bakes C, Fuller C, Toschi E, Wolpsert H, Middelbeek R, Cherng Jye LS, Shahar J, Slyne C, Edwards S, Castillo AA, DuBose SN, Beck RW, Verdejo AS, Cummins M, Newswanger B, Prestrelski S. Mini-Dose Glucagon as a Novel Approach to Prevent Exercise-Induced Hypoglycemia in Type 1 Diabetes. Diabetes Care 2018; 41:1909-1916. [PMID: 29776987 PMCID: PMC6463733 DOI: 10.2337/dc18-0051] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/25/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Patients with type 1 diabetes who do aerobic exercise often experience a drop in blood glucose concentration that can result in hypoglycemia. Current approaches to prevent exercise-induced hypoglycemia include reduction in insulin dose or ingestion of carbohydrates, but these strategies may still result in hypoglycemia or hyperglycemia. We sought to determine whether mini-dose glucagon (MDG) given subcutaneously before exercise could prevent subsequent glucose lowering and to compare the glycemic response to current approaches for mitigating exercise-associated hypoglycemia. RESEARCH DESIGN AND METHODS We conducted a four-session, randomized crossover trial involving 15 adults with type 1 diabetes treated with continuous subcutaneous insulin infusion who exercised fasting in the morning at ∼55% VO2max for 45 min under conditions of no intervention (control), 50% basal insulin reduction, 40-g oral glucose tablets, or 150-μg subcutaneous glucagon (MDG). RESULTS During exercise and early recovery from exercise, plasma glucose increased slightly with MDG compared with a decrease with control and insulin reduction and a greater increase with glucose tablets (P < 0.001). Insulin levels were not different among sessions, whereas glucagon increased with MDG administration (P < 0.001). Hypoglycemia (plasma glucose <70 mg/dL) was experienced by six subjects during control, five subjects during insulin reduction, and none with glucose tablets or MDG; five subjects experienced hyperglycemia (plasma glucose ≥250 mg/dL) with glucose tablets and one with MDG. CONCLUSIONS MDG may be more effective than insulin reduction for preventing exercise-induced hypoglycemia and may result in less postintervention hyperglycemia than ingestion of carbohydrate.
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Affiliation(s)
- Michael R. Rickels
- Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | | | - Elena Toschi
- Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | | | | | - Howard Wolpert
- Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | | | | | - Michael C. Riddell
- Muscle Health Research Centre, York University School of Kinesiology and Health Science, Toronto, Ontario, Canada
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22
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Castle JR. Is Mini-Dose Glucagon the Answer to Preventing Exercise-Related Dysglycemia? Diabetes Care 2018; 41:1842-1843. [PMID: 30135198 DOI: 10.2337/dci18-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jessica R Castle
- Division of Endocrinology, Diabetes & Clinical Nutrition, Department of Medicine, Harold Schnitzer Diabetes Health Center, Oregon Health & Science University, Portland, OR
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23
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Li NX, Brown S, Kowalski T, Wu M, Yang L, Dai G, Petrov A, Ding Y, Dlugos T, Wood HB, Wang L, Erion M, Sherwin R, Kelley DE. GPR119 Agonism Increases Glucagon Secretion During Insulin-Induced Hypoglycemia. Diabetes 2018; 67:1401-1413. [PMID: 29669745 PMCID: PMC6014553 DOI: 10.2337/db18-0031] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 04/10/2018] [Indexed: 01/08/2023]
Abstract
Insulin-induced hypoglycemia in diabetes is associated with impaired glucagon secretion. In this study, we tested whether stimulation of GPR119, a G-protein-coupled receptor expressed in pancreatic islet as well as enteroendocrine cells and previously shown to stimulate insulin and incretin secretion, might enhance glucagon secretion during hypoglycemia. In the study, GPR119 agonists were applied to isolated islets or perfused pancreata to assess insulin and glucagon secretion during hypoglycemic or hyperglycemic conditions. Insulin infusion hypoglycemic clamps were performed with or without GPR119 agonist pretreatment to assess glucagon counterregulation in healthy and streptozotocin (STZ)-induced diabetic rats, including those exposed to recurrent bouts of insulin-induced hypoglycemia that leads to suppression of hypoglycemia-induced glucagon release. Hypoglycemic clamp studies were also conducted in GPR119 knockout (KO) mice to evaluate whether the pharmacological stimulatory actions of GPR119 agonists on glucagon secretion during hypoglycemia were an on-target effect. The results revealed that GPR119 agonist-treated pancreata or cultured islets had increased glucagon secretion during low glucose perfusion. In vivo, GPR119 agonists also significantly increased glucagon secretion during hypoglycemia in healthy and STZ-diabetic rats, a response that was absent in GPR119 KO mice. In addition, impaired glucagon counterregulatory responses were restored by a GPR119 agonist in STZ-diabetic rats that were exposed to antecedent bouts of hypoglycemia. Thus, GPR119 agonists have the ability to pharmacologically augment glucagon secretion, specifically in response to hypoglycemia in diabetic rodents. Whether this effect might serve to diminish the occurrence and severity of iatrogenic hypoglycemia during intensive insulin therapy in patients with diabetes remains to be established.
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Affiliation(s)
- Nina Xiaoyan Li
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | | | - Tim Kowalski
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | - Margaret Wu
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | - Liming Yang
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | - Ge Dai
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | - Aleksandr Petrov
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | | | | | - Harold B Wood
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | - Liangsu Wang
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | - Mark Erion
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
| | | | - David E Kelley
- Discovery, Preclinical and Early Development, Merck & Co., Inc., Kenilworth, NJ
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Abstract
Glycemic control is the mainstay of preventing diabetes complications at the expense of increased risk of hypoglycemia. Severe hypoglycemia negatively impacts the quality of life of patients with type 1 diabetes and can lead to morbidity and mortality. Currently available glucagon emergency kits are effective at treating hypoglycemia when correctly used, however use is complicated especially by untrained persons. Better formulations and devices for glucagon treatment of hypoglycemia are needed, specifically stable liquid glucagon. Out of the scope of this review, other potential uses of stable liquid glucagon include congenital hyperinsulinism, post-bariatric surgery hypoglycemia, and insulinoma induced hypoglycemia. In the 35 years since Food and Drug Administration (FDA) approval of the first liquid stable human recombinant insulin, we continue to wait for the glucagon counterpart. For mild hypoglycemia, a commercially available liquid stable glucagon would enable more widespread implementation of mini-dose glucagon use as well as glucagon in dual hormone closed-loop systems. This review focuses on the current and upcoming pharmaceutical uses of glucagon in the treatment of type 1 diabetes with an outlook on stable liquid glucagon preparations that will hopefully be available for use in patients in the near future.
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Affiliation(s)
- Leah M. Wilson
- Division of Endocrinology, Diabetes and
Clinical Nutrition, Oregon Health & Science University, Portland, OR, USA
| | - Jessica R. Castle
- Division of Endocrinology, Diabetes and
Clinical Nutrition, Oregon Health & Science University, Portland, OR, USA
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25
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Abstract
Type 1 diabetes is a chronic autoimmune disease characterised by insulin deficiency and resultant hyperglycaemia. Knowledge of type 1 diabetes has rapidly increased over the past 25 years, resulting in a broad understanding about many aspects of the disease, including its genetics, epidemiology, immune and β-cell phenotypes, and disease burden. Interventions to preserve β cells have been tested, and several methods to improve clinical disease management have been assessed. However, wide gaps still exist in our understanding of type 1 diabetes and our ability to standardise clinical care and decrease disease-associated complications and burden. This Seminar gives an overview of the current understanding of the disease and potential future directions for research and care.
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Affiliation(s)
- Linda A DiMeglio
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA.
| | - Carmella Evans-Molina
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Richard A Oram
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, and The Academic Kidney Unit, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
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Laguna Sanz AJ, Mulla CM, Fowler KM, Cloutier E, Goldfine AB, Newswanger B, Cummins M, Deshpande S, Prestrelski SJ, Strange P, Zisser H, Doyle FJ, Dassau E, Patti ME. Design and Clinical Evaluation of a Novel Low-Glucose Prediction Algorithm with Mini-Dose Stable Glucagon Delivery in Post-Bariatric Hypoglycemia. Diabetes Technol Ther 2018; 20:127-139. [PMID: 29355439 PMCID: PMC5771550 DOI: 10.1089/dia.2017.0298] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Postbariatric hypoglycemia (PBH) is a complication of bariatric surgery with limited therapeutic options. We developed an event-based system to predict and detect hypoglycemia based on continuous glucose monitor (CGM) data and recommend delivery of minidose liquid glucagon. METHODS We performed an iterative development clinical study employing a novel glucagon delivery system: a Dexcom CGM connected to a Windows tablet running a hypoglycemia prediction algorithm and an Omnipod pump filled with an investigational stable liquid glucagon formulation. Meal tolerance testing was performed in seven participants with PBH and history of neuroglycopenia. Glucagon was administered when hypoglycemia was predicted. Primary outcome measures included the safety and feasibility of this system to predict and prevent severe hypoglycemia. Secondary outcomes included hypoglycemia prediction by the prediction algorithm, minimization of time below hypoglycemia threshold using glucagon, and prevention of rebound hyperglycemia. RESULTS The hypoglycemia prediction algorithm alerted for impending hypoglycemia in the postmeal state, prompting delivery of glucagon (150 μg). After observations of initial incomplete efficacy to prevent hypoglycemia in the first two participants, system modifications were implemented: addition of PBH-specific detection algorithm, increased glucagon dose (300 μg), and a second glucagon dose if needed. These modifications, together with rescue carbohydrates provided to some participants, contributed to progressive improvements in glucose time above the hypoglycemia threshold (75 mg/dL). CONCLUSIONS Preliminary results indicate that our event-based automatic monitoring algorithm successfully predicted likely hypoglycemia. Minidose glucagon therapy was well tolerated, without prolonged or severe hypoglycemia, and without rebound hyperglycemia.
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Affiliation(s)
- Alejandro J. Laguna Sanz
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | | | | | - Emilie Cloutier
- Research Division, Joslin Diabetes Center, Boston, Massachusetts
| | | | - Brett Newswanger
- Research and Development Xeris Pharmaceuticals, Inc., Austin, Texas
| | - Martin Cummins
- Research and Development Xeris Pharmaceuticals, Inc., Austin, Texas
| | - Sunil Deshpande
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | | | - Poul Strange
- Research and Development Xeris Pharmaceuticals, Inc., Austin, Texas
| | - Howard Zisser
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California
| | - Francis J. Doyle
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | - Eyal Dassau
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
- Research Division, Joslin Diabetes Center, Boston, Massachusetts
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Villani M, de Courten B, Zoungas S. Emergency treatment of hypoglycaemia: a guideline and evidence review. Diabet Med 2017; 34:1205-1211. [PMID: 28477413 DOI: 10.1111/dme.13379] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/03/2017] [Indexed: 12/30/2022]
Abstract
AIM To examine the current treatment guidelines for the emergency management of hypoglycaemia and the evidence underpinning recommendations. METHODS International diabetes agencies were searched for hypoglycaemia treatment guidelines. Guidelines were assessed using the Appraisal of Guidelines Research and Evaluation II (AGREE II) instrument. An electronic database search was conducted for evidence regarding emergency treatment of hypoglycaemia in adults, and relevant articles were critically appraised. RESULTS Of the international diabetes agencies, six sets of guidelines were deemed relevant and of sufficient detail for appraisal by AGREE II. The evidence search returned 2649 articles, of which 17 pertaining to the emergency management of hypoglycaemia were included. High-quality evidence for the management of hypoglycaemia was lacking, limiting treatment recommendations. In general, guidelines and studies were somewhat concordant and recommended 15-20 g of oral glucose or sucrose, repeated after 10-15 min for treatment of the responsive adult, and 10% intravenous dextrose or 1 mg intramuscular glucagon for treatment of the unresponsive adult. No evidence was found for other treatment approaches. CONCLUSION Evidence for the emergency treatment of hypoglycaemia in adults is limited, is often low grade and mostly pre-dates contemporary management of diabetes. Guideline recommendations are limited by the lack of randomized trials. Further high-quality studies are required to inform the optimum management of this frequently occurring emergency condition.
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Affiliation(s)
- M Villani
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University in partnership with Monash Health, Clayton, VIC, Australia
| | - B de Courten
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University in partnership with Monash Health, Clayton, VIC, Australia
- Diabetes and Vascular Medicine Unit, Monash Health, Clayton, VIC, Australia
| | - S Zoungas
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University in partnership with Monash Health, Clayton, VIC, Australia
- Diabetes and Vascular Medicine Unit, Monash Health, Clayton, VIC, Australia
- The George Institute for Global Health, Camperdown, NSW, Australia
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Haymond MW, DuBose SN, Rickels MR, Wolpert H, Shah VN, Sherr JL, Weinstock RS, Agarwal S, Verdejo AS, Cummins MJ, Newswanger B, Beck RW. Efficacy and Safety of Mini-Dose Glucagon for Treatment of Nonsevere Hypoglycemia in Adults With Type 1 Diabetes. J Clin Endocrinol Metab 2017; 102:2994-3001. [PMID: 28591776 DOI: 10.1210/jc.2017-00591] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/02/2017] [Indexed: 11/19/2022]
Abstract
CONTEXT Standard treatment of hypoglycemia is oral carbohydrate, but it often results in hyperglycemia and entails extra caloric intake. OBJECTIVE To evaluate low-dose glucagon to treat mild hypoglycemia in ambulatory adults with type 1 diabetes (T1D). DESIGN Randomized crossover trial (two 3-week periods). SETTING Five U.S. diabetes clinics. PATIENTS Twenty adults with T1D using an insulin pump and continuous glucose monitor (CGM) and experiencing frequent mild hypoglycemia. INTERVENTION Nonaqueous mini-dose glucagon (MDG) (150 µg) to treat nonsevere hypoglycemia. MAIN OUTCOME MEASURES Successful treatment was defined as blood glucose (BG) ≥50 mg/dL 15 minutes and ≥70 mg/dL 30 minutes after intervention, on the study meter. Two authors, blinded to treatment arm, independently judged each event as a clinical success or failure. RESULTS Sixteen participants (mean age 39 years, 75% female, mean diabetes duration 23 years, mean hemoglobin A1c 7.2%) had 118 analyzable events with initial BG of 50 to 69 mg/dL. Successful treatment criteria were met for 58 (94%) of 62 events during the MDG period and 53 (95%) of 56 events during the glucose tablets (TABS) period (adjusted P = 0.99). Clinical assessments of success for these events were 97% and 96%, respectively. CGM-measured time in range did not differ between treatment groups during the 2 hours after events, but TABS resulted in higher maximum glucose (116 vs 102 mg/dL; P = 0.01) over the first hour. CONCLUSIONS Low-dose glucagon can successfully treat mild hypoglycemia and may be a useful alternative to treatment with oral carbohydrate when trying to avoid unnecessary caloric intake.
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Affiliation(s)
| | | | - Michael R Rickels
- University of Pennsylvania Perelman School of Medicine/Rodebaugh Diabetes Center, Philadelphia, Pennsylvania 19104
| | - Howard Wolpert
- Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts 02215
| | - Viral N Shah
- Barbara Davis Center for Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045
| | | | | | - Shivani Agarwal
- University of Pennsylvania Perelman School of Medicine/Rodebaugh Diabetes Center, Philadelphia, Pennsylvania 19104
| | | | | | | | - Roy W Beck
- Jaeb Center for Health Research, Tampa, Florida 33647
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29
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El-Khatib FH, Balliro C, Hillard MA, Magyar KL, Ekhlaspour L, Sinha M, Mondesir D, Esmaeili A, Hartigan C, Thompson MJ, Malkani S, Lock JP, Harlan DM, Clinton P, Frank E, Wilson DM, DeSalvo D, Norlander L, Ly T, Buckingham BA, Diner J, Dezube M, Young LA, Goley A, Kirkman MS, Buse JB, Zheng H, Selagamsetty RR, Damiano ER, Russell SJ. Home use of a bihormonal bionic pancreas versus insulin pump therapy in adults with type 1 diabetes: a multicentre randomised crossover trial. Lancet 2017; 389:369-380. [PMID: 28007348 PMCID: PMC5358809 DOI: 10.1016/s0140-6736(16)32567-3] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 11/29/2016] [Accepted: 12/05/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND The safety and effectiveness of a continuous, day-and-night automated glycaemic control system using insulin and glucagon has not been shown in a free-living, home-use setting. We aimed to assess whether bihormonal bionic pancreas initialised only with body mass can safely reduce mean glycaemia and hypoglycaemia in adults with type 1 diabetes who were living at home and participating in their normal daily routines without restrictions on diet or physical activity. METHODS We did a random-order crossover study in volunteers at least 18 years old who had type 1 diabetes and lived within a 30 min drive of four sites in the USA. Participants were randomly assigned (1:1) in blocks of two using sequentially numbered sealed envelopes to glycaemic regulation with a bihormonal bionic pancreas or usual care (conventional or sensor-augmented insulin pump therapy) first, followed by the opposite intervention. Both study periods were 11 days in length, during which time participants continued all normal activities, including athletics and driving. The bionic pancreas was initialised with only the participant's body mass. Autonomously adaptive dosing algorithms used data from a continuous glucose monitor to control subcutaneous delivery of insulin and glucagon. The coprimary outcomes were the mean glucose concentration and time with continuous glucose monitoring (CGM) glucose concentration less than 3·3 mmol/L, analysed over days 2-11 in participants who completed both periods of the study. This trial is registered with ClinicalTrials.gov, number NCT02092220. FINDINGS We randomly assigned 43 participants between May 6, 2014, and July 3, 2015, 39 of whom completed the study: 20 who were assigned to bionic pancreas first and 19 who were assigned to the comparator first. The mean CGM glucose concentration was 7·8 mmol/L (SD 0·6) in the bionic pancreas period versus 9·0 mmol/L (1·6) in the comparator period (difference 1·1 mmol/L, 95% CI 0·7-1·6; p<0·0001), and the mean time with CGM glucose concentration less than 3·3 mmol/L was 0·6% (0·6) in the bionic pancreas period versus 1·9% (1·7) in the comparator period (difference 1·3%, 95% CI 0·8-1·8; p<0·0001). The mean nausea score on the Visual Analogue Scale (score 0-10) was greater during the bionic pancreas period (0·52 [SD 0·83]) than in the comparator period (0·05 [0·17]; difference 0·47, 95% CI 0·21-0·73; p=0·0024). Body mass and laboratory parameters did not differ between periods. There were no serious or unexpected adverse events in the bionic pancreas period of the study. INTERPRETATION Relative to conventional and sensor-augmented insulin pump therapy, the bihormonal bionic pancreas, initialised only with participant weight, was able to achieve superior glycaemic regulation without the need for carbohydrate counting. Larger and longer studies are needed to establish the long-term benefits and risks of automated glycaemic management with a bihormonal bionic pancreas. FUNDING National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health, and National Center for Advancing Translational Sciences.
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Affiliation(s)
- Firas H El-Khatib
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Courtney Balliro
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Mallory A Hillard
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Kendra L Magyar
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Laya Ekhlaspour
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Manasi Sinha
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Debbie Mondesir
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Aryan Esmaeili
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Celia Hartigan
- Center for Clinical and Translational Science and the Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, MA, USA
| | - Michael J Thompson
- Center for Clinical and Translational Science and the Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, MA, USA
| | - Samir Malkani
- Center for Clinical and Translational Science and the Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, MA, USA
| | - J Paul Lock
- Center for Clinical and Translational Science and the Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, MA, USA
| | - David M Harlan
- Center for Clinical and Translational Science and the Diabetes Center of Excellence, University of Massachusetts Medical School, Worcester, MA, USA
| | - Paula Clinton
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Eliana Frank
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Darrell M Wilson
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Daniel DeSalvo
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Lisa Norlander
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Trang Ly
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Bruce A Buckingham
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Jamie Diner
- Diabetes Care Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Milana Dezube
- Diabetes Care Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Laura A Young
- Diabetes Care Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - April Goley
- Diabetes Care Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - M Sue Kirkman
- Diabetes Care Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - John B Buse
- Diabetes Care Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Hui Zheng
- Biostatistics Center, Massachusetts General Hospital, Boston, MA, USA
| | | | - Edward R Damiano
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Steven J Russell
- Diabetes Unit and Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
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30
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Patel NS, Van Name MA, Cengiz E, Carria LR, Tichy EM, Weyman K, Weinzimer SA, Tamborlane WV, Sherr JL. Mitigating Reductions in Glucose During Exercise on Closed-Loop Insulin Delivery: The Ex-Snacks Study. Diabetes Technol Ther 2016; 18:794-799. [PMID: 27996320 PMCID: PMC5178000 DOI: 10.1089/dia.2016.0311] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To assess whether snacking could be used with closed-loop (CL) insulin delivery to avoid exercise-induced reductions in plasma glucose (PG), as well as elevations in PG at the end of exercise. RESEARCH DESIGN AND METHODS Twelve type 1 diabetes (T1D) subjects (age 13-36 years, duration 10.7 ± 8.4 years, A1c 7.4% ± 0.8% [57 ± 8.7 mmol/mol]) underwent two 105-min exercise studies while under CL control: CL alone and CL+snack. Exercise, commenced at 3 PM, consisted of four 15-min periods of brisk treadmill walking to 65%-70% HRmax (separated by three 5-min rest periods), followed by a 30-min recovery period. Fifteen to 30 g carbohydrate (Gatorade) was provided on snacking visits just before and midway through the exercise period. PG and insulin were measured every 15-20 min during the exercise studies. RESULTS Baseline PG levels were similar for CL alone (164 ± 16 mg/dL) versus CL+snack (172 ± 11 mg/dL). During exercise, PG levels fell by 53 ± 10 mg/dL without snacking versus a modest 10 ± 13 mg/dL increase in PG with snacking (P = 0.0005); similar differences in the change in PG levels were observed at the end of recovery period. Hypoglycemia requiring rescue treatment (PG ≤60 mg/dL) during exercise occurred in three nonsnacking visits versus none with snacking. During the 75-min exercise period, insulin delivered was 1.8 ± 0.4 U for the CL+snack admission compared to 0.7 ± 0.1 U during CL alone (P = 0.002). CONCLUSION These results support the use of a simple snacking strategy to avoid exercise-induced lowering of PG while on CL insulin delivery. Persistent insulin infusion during exercise with snacking also appears to be effective in limiting increases in PG at the end of exercise.
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Affiliation(s)
- Neha S Patel
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - Michelle A Van Name
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - Eda Cengiz
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - Lori R Carria
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - Eileen M Tichy
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - Kate Weyman
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - Stuart A Weinzimer
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - William V Tamborlane
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
| | - Jennifer L Sherr
- Yale School of Medicine , Yale Pediatric Endocrinology & Diabetes, New Haven, Connecticut
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31
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Castle JR, Youssef JE, Branigan D, Newswanger B, Strange P, Cummins M, Shi L, Prestrelski S. Comparative Pharmacokinetic/Pharmacodynamic Study of Liquid Stable Glucagon Versus Lyophilized Glucagon in Type 1 Diabetes Subjects. J Diabetes Sci Technol 2016; 10:1101-7. [PMID: 27325390 PMCID: PMC5032962 DOI: 10.1177/1932296816653141] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND There is currently no stable liquid form of glucagon commercially available. The aim of this study is to assess the speed of absorption and onset of action of G-Pump™ glucagon at 3 doses as compared to GlucaGen®, all delivered subcutaneously via an OmniPod®. METHODS Nineteen adult subjects with type 1 diabetes participated in this Phase 2, randomized, double-blind, cross-over, pharmacokinetic/pharmacodynamic study. Subjects were given 0.3, 1.2, and 2.0 µg/kg each of G-Pump glucagon and GlucaGen via an OmniPod. RESULTS G-Pump glucagon effectively increased blood glucose levels in a dose-dependent fashion with a glucose Cmax of 183, 200, and 210 mg/dL at doses of 0.3, 1.2, and 2.0 µg/kg, respectively (P = ns vs GlucaGen). Mean increases in blood glucose from baseline were 29.2, 52.9, and 77.7 mg/dL for G-Pump doses of 0.3, 1.2, and 2.0 µg/kg, respectively. There were no statistically significant differences between treatments in the glucose T50%-early or glucagon T50%-early with one exception. The glucagon T50%-early was greater following G-Pump treatment at the 2.0 μg/kg dose (13.9 ± 4.7 min) compared with GlucaGen treatment at the 2.0 μg/kg dose (11.0 ± 3.1 min, P = .018). There was more pain and erythema at the infusion site with G-Pump as compared to GlucaGen. No serious adverse events were reported, and no unexpected safety issues were observed. CONCLUSIONS G-Pump glucagon is a novel, stable glucagon formulation with similar PK/PD properties as GlucaGen, but was associated with more pain and infusion site reactions as the dose increased, as compared to GlucaGen.
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Affiliation(s)
- Jessica R Castle
- Department of Medicine, Division of Endocrinology, Harold Schnitzer Diabetes Health Center Oregon Health & Science University, Portland, OR, USA
| | - Joseph El Youssef
- Department of Medicine, Division of Endocrinology, Harold Schnitzer Diabetes Health Center Oregon Health & Science University, Portland, OR, USA
| | - Deborah Branigan
- Department of Medicine, Division of Endocrinology, Harold Schnitzer Diabetes Health Center Oregon Health & Science University, Portland, OR, USA
| | | | - Poul Strange
- Xeris Pharmaceuticals, Inc, Austin, TX, USA Integrated Medical Development, Princeton Junction, NJ, USA
| | | | - Leon Shi
- Integrated Medical Development, Princeton Junction, NJ, USA
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32
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Mroz PA, Perez-Tilve D, Liu F, Gelfanov V, DiMarchi RD, Mayer JP. Pyridyl-alanine as a Hydrophilic, Aromatic Element in Peptide Structural Optimization. J Med Chem 2016; 59:8061-7. [PMID: 27509198 DOI: 10.1021/acs.jmedchem.6b00840] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Glucagon (Gcg) 1 serves a seminal physiological role in buffering against hypoglycemia, but its poor biophysical properties severely complicate its medicinal use. We report a series of novel glucagon analogues of enhanced aqueous solubility and stability at neutral pH, anchored by Gcg[Aib16]. Incorporation of 3- and 4-pyridyl-alanine (3-Pal and 4-Pal) enhanced aqueous solubility of glucagon while maintaining biological properties. Relative to native hormone, analogue 9 (Gcg[3-Pal6,10,13, Aib16]) demonstrated superior biophysical character, better suitability for medicinal purposes, and comparable pharmacology against insulin-induced hypoglycemia in rats and pigs. Our data indicate that Pal is a versatile surrogate to natural aromatic amino acids and can be employed as an alternative or supplement with isoelectric adjustment to refine the biophysical character of peptide drug candidates.
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Affiliation(s)
- Piotr A Mroz
- Department of Chemistry, Indiana University , 800 East Kirkwood, Bloomington, Indiana 47405 United States
| | - Diego Perez-Tilve
- Department of Medicine, Metabolic Diseases Institute, University of Cincinnati , Cincinnati, Ohio 45267 United States
| | - Fa Liu
- Novo Nordisk Research Center , Indianapolis, Indiana 46241, United States
| | - Vasily Gelfanov
- Novo Nordisk Research Center , Indianapolis, Indiana 46241, United States
| | - Richard D DiMarchi
- Department of Chemistry, Indiana University , 800 East Kirkwood, Bloomington, Indiana 47405 United States.,Novo Nordisk Research Center , Indianapolis, Indiana 46241, United States
| | - John P Mayer
- Novo Nordisk Research Center , Indianapolis, Indiana 46241, United States
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